Buggy code:
public class OlderFunctionCompilerTest { private static final String concatList0 = "" + ( ( ( ( "define<seq2seq4repair_space>concat-list0<seq2seq4repair_space>=<seq2seq4repair_space>split<seq2seq4repair_space>{h<seq2seq4repair_space>=><seq2seq4repair_space>t<seq2seq4repair_space>=><seq2seq4repair_space>\n" + "<seq2seq4repair_space>if-tree<seq2seq4repair_space>{h}<seq2seq4repair_space>\n" ) + "<seq2seq4repair_space>{h1<seq2seq4repair_space>=><seq2seq4repair_space>t1<seq2seq4repair_space>=><seq2seq4repair_space>h1,<seq2seq4repair_space>concat-list0<seq2seq4repair_space>{t1,<seq2seq4repair_space>t}}<seq2seq4repair_space>\n" ) + "<seq2seq4repair_space>{concat-list0<seq2seq4repair_space>{t}}<seq2seq4repair_space>\n" ) + "}<seq2seq4repair_space>>><seq2seq4repair_space>\n" ) ; private static final String filter0 = "" + ( ( ( ( ( "define<seq2seq4repair_space>filter0<seq2seq4repair_space>=<seq2seq4repair_space>(fun<seq2seq4repair_space>=><seq2seq4repair_space>\n" + "<seq2seq4repair_space>split<seq2seq4repair_space>{h<seq2seq4repair_space>=><seq2seq4repair_space>t<seq2seq4repair_space>=><seq2seq4repair_space>\n" ) + "<seq2seq4repair_space>define<seq2seq4repair_space>others<seq2seq4repair_space>=<seq2seq4repair_space>filter0<seq2seq4repair_space>{fun}<seq2seq4repair_space>{t}<seq2seq4repair_space>>><seq2seq4repair_space>\n" ) + "<seq2seq4repair_space>fun<seq2seq4repair_space>{h}<seq2seq4repair_space>?<seq2seq4repair_space>h,<seq2seq4repair_space>others<seq2seq4repair_space>|<seq2seq4repair_space>others<seq2seq4repair_space>\n" ) + "<seq2seq4repair_space>}<seq2seq4repair_space>\n" ) + ")<seq2seq4repair_space>>><seq2seq4repair_space>\n" ) ; private static final String ifTree = "" + ( ( ( ( ( "define<seq2seq4repair_space>if-tree<seq2seq4repair_space>=<seq2seq4repair_space>(list<seq2seq4repair_space>=><seq2seq4repair_space>f1<seq2seq4repair_space>=><seq2seq4repair_space>f2<seq2seq4repair_space>=><seq2seq4repair_space>\n" + "<seq2seq4repair_space>if<seq2seq4repair_space>(is-tree<seq2seq4repair_space>{list})<seq2seq4repair_space>then<seq2seq4repair_space>(<seq2seq4repair_space>\n" ) + "<seq2seq4repair_space>f1<seq2seq4repair_space>{head<seq2seq4repair_space>{list}}<seq2seq4repair_space>{tail<seq2seq4repair_space>{list}}<seq2seq4repair_space>\n" ) + "<seq2seq4repair_space>)<seq2seq4repair_space>\n" ) + "<seq2seq4repair_space>else<seq2seq4repair_space>f2<seq2seq4repair_space>\n" ) + ")<seq2seq4repair_space>>><seq2seq4repair_space>\n" ) ; private static final String map0 = "" + "define<seq2seq4repair_space>map0<seq2seq4repair_space>=<seq2seq4repair_space>(fun<seq2seq4repair_space>=><seq2seq4repair_space>split<seq2seq4repair_space>{h<seq2seq4repair_space>=><seq2seq4repair_space>t<seq2seq4repair_space>=><seq2seq4repair_space>fun<seq2seq4repair_space>{h},<seq2seq4repair_space>map0<seq2seq4repair_space>{fun}<seq2seq4repair_space>{t}})<seq2seq4repair_space>>><seq2seq4repair_space>\n" ; private static final String split = "" + "define<seq2seq4repair_space>split<seq2seq4repair_space>=<seq2seq4repair_space>(fun<seq2seq4repair_space>=><seq2seq4repair_space>list<seq2seq4repair_space>=><seq2seq4repair_space>if-tree<seq2seq4repair_space>{list}<seq2seq4repair_space>{fun}<seq2seq4repair_space>{})<seq2seq4repair_space>>><seq2seq4repair_space>\n" ; @ Test public void testConcat ( ) { } @ Test public void testFilter ( ) { } @ Test public void testMap ( ) { } private static Node eval ( String f ) { <START_BUG> return SuiteUtil . evaluateFunctional ( f ) ; <END_BUG> } }

Fix:
return SuiteUtil . evaluateFunctional ( f , false ) ;